Rolling machine



April 1948. F. M, KRATOVILLE ET AL 2,439,170

ROLLING MACHINE Filed Jan. 24, 1946 5 Sheets-Sheet l Alma/rams I FRANK M. KRATOVILLE FsRMIN M. CUNNINGHAM Br WW4,

April 1948- F. M. KRATOVILLE LLIT AL 2,439,170

ROLLING MACHINE Filed Jan. 24, 1946 5 Sheets-Sheet 2 Nvmm E kws mom m NT T EAN T VRU A mKC MMM K NW N M m X April 1948. F. M. KRATOVILLE ET AL 39,170

ROLLING MACHINE Filed Jan. 24, 1946 5 Sheets-Sheet 3 FIG i0 1 I II I 1r" 3 W 49 "Z WM 48 j 21- aw IN VE'N 7'0 Rs FRANK M. KRATOVILLE FIRMIN M. CUNNINGHAM April 6, 1948. F. M. KRATOVILLE E1- AL 2,439,170

ROLLING MACHINE I Filed Jan. 24, 1946 5 Sheets-Sheet 4 FIRMIN M. CUNNINGHAM 147' ra/eMe-r FRANK M. KRATOVILLE April 6, 1948. F. M. KRATOVILLE T AL 2,439,170

ROLLING MACHINE Filed Jan. 24, 1946 5 Sheets-Sheet 5 III .allllllll ||ll|l|||||| J III- R Q NM v I I H H R NM EM LA s H RIG T 0] NTN- EA VRU K M K Nm MM m Patented Apr. 6, 1948 R L 523 Frank M. Kratoville, St. Leuisi and Firmin M. Cunningham, Maplewood, Moi, assignors to James H. Kearney Corporation; St. Louis, Mo., a corporation of Missouri Application January 24, ism-serial Net-643.177

8 Claims.

"This invention. relates generally to pressure rolling'machines, and more specifically to pressure rolling machines which are adapted for use in connecting fittingsto wires, cables, and. other elongated bodies, and "which includes A pressure rollers that-are rotated in contact with sleeve portions associated with said fittings in a manner to compress "the' sleeve portions and force the walls thereof into intimate, gripping contact with portions of the elongated bodies disposed within said sleeve portions-so-asto securelyconnect said elongated bodies 'and fittingstogether, the predominant object of the invention being to provide such a rolling mach-inewhich includes improved carriage means for movably supporting an elon"-' gated body and afitting, which areto be connected; duringrolling operation of the rolling machine.'r I

Fig. 1 is a-front elevation of a rolling machine constructedand arranged in accordance with this invention, portions of the operating handles of the machine;- which actuate therollers thereof intermittently, being'broken away. i

Fig.- 2 is a vertical section taken on line 2-'-2 of mg 1 i I Fig. 3 is a vertical section taken on line '3--3 of Fig. 4 illustrates a plurality of socket elements of-different sizes and constructionswhich are employed in the i use of the-machine illustrated in Figs. 1;,2,-and3w '1 1 .-Fig: 5 is an enlarged section taken on line 55 ofFig. 1. i 1 r Fig. G is a fragmentary end elevation "of the structure illustrated in Fig.5, looking toward the left-handendthereof. i

Fig.7" is a fragmentary end elevation-of the opposite .end of the-structureshown in Fig. 5, a portion of the supported work being shown-in section Fig. .8 is afragmentary vertical section taken online 8-.-8--of.Fig. 5. i v v 1 Fig. .9 is a view, partlyin section andpartly in elevation, illustrating the improved carriage means for supporting workbeing acted on by the machine. q i i i Fig. 10 is a front elevation of the rolling machine, withthe handles broken away, andshowing the positions f the rollers when the'WOI'KYtO be acted on by the. machineis introduced into-place forloperation of the machine. 7

Fig. 11 is a view similar to Fig. 10,- but showing the positions of the;rol1ers .of the. machine at the commencement 10f, a rolling operation of -the machine; ll. gi

Fig.'1-2 isa 'vi'ewsimilar to Figs. 10 and 11, but showing the positions of the rollers of the machine at the finish of. arolling operation of the machine.

Fig. "13 is a view similar. to Figs. 10, 11 and 2, but showing the machine provided with rollers of a different type and illustrating the work acted onbysaid rollers; i

. Fig. 14 is a front elevation of a difierent type of machine whichis' provided with a crank for rotating the rollers thereof continuously, and which is constructed in accordance with the present invention.

Fig. 15' isa 'view partly inside elevation and partly in vertical sectionfofthe machine illustratedin'Fi rll. 1 V t Fig: 161isarear elevation of the machine illustrated-in Fi'gs. 14 and 15 with apart thereof shown insection. i l i Fig. 17 is arr-enlarged; fragmentary section Fig. 18 is a s'eetion taken 9 on line I8--l8 of Fig. 1'7 and lookinginthe direction of the arrow.

Fig. 19 is a section taken on line Iii-19 of Figi 17fi i Figb-ZO is -a view simi-lar toFig. 17 but illustrating an adapter employed when work of a different type is beingacted on by the machine.

*Inthe drawings; whereinare shown for purposesofillustration; merelyQtwo embodiments of the invention; A designates generally in Figs. 1 to 13; inclusive. oneformof the improved rolling machines disclosed herein. The rollingmachine A includes a pair of spaced frame members I and 2 through-which alinedi upper openings 3 and alined lower openings 4 are formed, and arranged in these.openingsfiimandltarefroller hearing assemblies 3'and 4' v(Figs. 2).. Theroller bearing assemblies 3' of the alined' openings. 3 support for rotation an upper shaft 5, while the roller bearing assemblies 4' of the alinedcpenings .4 support for rotationa lower shaft 6.-:*The;shafts 5. and 6 have mountedr'on their forward-portions a pair of. pressure"rollers :1" and '8, :said pressure rollers being cir'cumferentially .,.grooved and being provided with recessed portions .1 and 8 which are adapted to perform'a function. to be hereinafter set forth. Theipressure rollers] and 8 are secured tothe shafts 5 and .6. byykeys. 9--(Fig. 1), andsaidzshafts 5and 6 have secured, to their forward faces disks it) which are of greater: diameter than the shafts so that they overlap the center openings of the rollersin whichthe forward end portions of the shafts are disposed. w Fixedly mounted on the rear end portionsof theshafts 5 and 6 is-a pair of gear;wheels=-l-L (Fig; 2) which; are arranged in lower shaft 6 (see Figs. 2 and 3).

3 mesh so as to insure uniformity of rotation of said shafts, a casing l2 being provided which is secured to the frame member 2 and houses the gear wheels II.

In order to impart intermittent rotary movement to the rollers I and 8 clutch mechanisms l3 and M are employed, the clutch mechanism l3 being associated with the upper shaft and the clutch mechanism 4 being associated with the The clutches i3 and [4 are preferably of the over-running type and the central portions of the shafts 5 and dare shaped as shown in Fig. 3 to provide parts of said over-running clutches, said central portion of each of said shafts 5 and 6 being provided with a plurality of pairs of angularly related faces l5 and i6, and annular clutch elements ll being arranged in embracing relation with respect to said central portions of said shafts 5 and 6. Spaces H! are provided between the angularly related pairs of faces of the central portions of the shafts 5 and 6 and portions of the inner faces of the annular clutch elements l1, rollers l9 being disposed in these openings and said rollers bein urged by coil springs 20 toward the narrower portions of said spaces. The annular, clutch elements H are provided with gear teeth H which extend over portions only of the circumferential faces of said annular, clutch elements and the gear teeth of the clutch elements are in mesh, as is shown in Fig. 3. The annular, clutch elements are subjected to rotation by a pair of handles 2| and 22 which are supported for pivotal movement by pivot elements 23 and 24 that are supported by the frame members I and 2, the handle 2| being provided with gear teeth 25 which mesh with the gear teeth H of the annular clutch element H which is associated with the upper shaft 5, while the handle 22 is provided with like gear teeth 25 which mesh with the gear teeth ll of the annular clutch element I! that is associated with the lower shaft 6. v

The operation of an over-running clutch is well known and therefore need not be described in detail herein, it being sufficient for the purpose of this disclosure to say that when the handles 2| and 22 are moved toward each other the annular, clutch elements l1 are moved in the directions indicated by the arrows in Fig. 3, because of the meshing gear teeth of the handles and the respective annular, clutch elements. During such rotation of the annular, clutch members the rollers H] are moved toward the portions of the spaces I8 which are of reduced width with the result that binding action takes place between said rollers and the faces l5 and the portions of the inner faces of the annular, clutch elements ll, whereby rotary motion is imparted to theshafts 5 and 6. Likewise, when the handles 2| and 22 are moved away from each other, the rollers l9 of the clutch mechanisms l3 and I4 are moved toward the portions of the spaces |8 which are of greater width, hence, no binding action takes place and the annular, clutch elements rotate relative to the central portions of the shaftsB and 6 without imparting rotary motion to said shafts. It will be noted that the rollers I 9 of the clutch mechanisms i3 and I4 are retained in place, insofar as longitudinal movement of said rollers are concerned, by spacers 2B which are interposed between said clrutch mechanisms and'the frame members and 2 (Fig. 2). Also, the handle 22 is provided with an extension 22' at its upper end which supports a pin 21 (Fig. 3) that contacts with the frame 4 member 2 to limit outward movement of the handles 2| and 22.

The general structure illustrated in Figs. 1 to 13, inclusive, and which has thus far been described in detail herein, is disclosed in United States Letters Patent No. 2,039,635, granted on May 5, 1936, toEllis W. Cooper@ The present invention relates particularly to a carriage structure which is adapted to support work being acted on by such a rolling machine and this carriage structure will now be described.

Extended outwardly from the frame member of the rolling machine A is a pair of spaced posts 28 (Fig. 5) which are provided at their outer ends with enlarged head portions 29, said head portions being shaped in end elevation as is shown in Figs. 6 and 7." The head portions of the posts 28 are each provided with a seat 39 that is provided with divergent walls, one of which wall is of less length than the other wall, and. said seats of said heads of said spaced posts are alined with each other. Supported by the head portions 29 of the spaced posts 28 is a horizontal bar 3| of rectangular cross-section shape which is supported in the seats 39 of said head portions in the manner shown to good advantage in Figs. 6, 7, and 8. Associated with the heads 29' of the spaced posts '28 is a structure which comprises a pair of plate portions 32 that are joined by an integral extension 33. The plate portions 32 are secured to the heads of the posts by pairs of fastening devices 34 that extend through openings formed through flange portions 32' of said plate.

portions and which are screwed into screwthreaded openings formed in corresponding flange portions 29"forming parts of the heads 29. The plate portions 32 are shaped in cross-section as shown in Figs. 6, 7, and 8, said plate portions being provided with seats 35 that are shaped in accordance with the seats 30 of the head portions 29 of the posts 28, but which are reversed relative to said seats 30, said seats 30 and 350i each related post head 29 and plate portion 32 combining to provide a partially rectangular guideway in which the bar 3| is confined for sliding movement longit udinally of the axis of said bar, and from which a portion of said bar extends in a downward direction (Fig. 2). r

The means for securing the spaced posts -'28, and the parts associated therewith, to the frame memher comprises bolts 36 (Fig. 8) which extend through alined openings formed through the flange portions 32 of the plate portions 32 and through the posts 28, said bolts being provided with enlarged, knurled, head portions 35 that engage the forward faces of said flange portions 32', and said bolts 36 being provided with screwthreaded opposite end portions that are screwed into screwthreaded openings formed in the frame member Because of this arrangement the entire work-supporting carriage may be removed. from the rolling machine as an assembled unit, it being necessary to remove the bolts 36 to remove from the machine the unitary assembly madeup of the posts 28, the structure of which the, plate portions 32 form parts, and the slidably movable bar 3|.

Secured to the slidably movable bar 3| at one end thereof is a member 31 which comprises a cylindrical portion 31a from which a flange portion 311) extends. The flange portion 31b of the member 31 is fixed, to the bar 3| by securing elements 38, said flange portion being disposed horizontally, as is shown in Fig. 2, and theaxis of said cylindrical portion being alined With'the 5 biteotthe pressurerollers--ofthe rolling machina 7 The cylindrical portion 31a of the member 31;- supports an appropriate socket element 3 9, one such socket element comprising a a shank portion-that is-disposed in the opening of said cylindrical portion,-and-an enlarged head portionwhich abuts against an end face of said cylindrical -portion- 3'la.---=The-socket element 39 has formed therethrough an opening 40, said opening being-of tapered shape throughout the portion thereof that extends-through the head portion of the socket-element, straight throughout a substantial portion of the shank portion of said socket element, and. tapered at theouter end of said shank portion, as is shown in Fig. 5.

-An outer portion of the shank portion of the socket. element 39 extends outwardly beyond an end of the cylindrical portion of the member 31, and this extended-shank portion has formed in the outer surface of the wall thereof an annular groove 4| that receives a portion of a retaining element 42. The retaining element is made of wire, or other suitable resilient material, an arcuate portion of said retaining element being seated in the lower portion of the groove 4! of the socket element 39, and an offset end portion of said retaining element being extended into an opening formed in the member 31 at the point designated by the reference character 42a. so that said retaining element is supported for pivotal movement. Also, the retaining element is provided with an eye 42b which provides a grip.

-The portion of the retaining element which is disposed in the groove 4| of the shank of the socket element extends outwardly beyond the outer surface of said shank portion and thus retains the socket element in association with the member 31 so that it may not be accidentally displaced therefrom, and when it is desired to remove the socket element from the member 31 it is necessary, merely, to spring the arcuate portion of the retaining element laterally out of the groove of the socket element and move the socket element in the proper direction to with draw the shank portion thereof from the cylindrical portion of the member 31.

Mounted at the end of the bar 3| opposite to the end thereof at which the member 31 is located, is a work-supporting structure 43. The work-supporting structure 43 comprises a pair of strips of resilient metal or other suitable material 43a and 4312, which are shaped as is shown in Fig. 7. The strips of material 4311. and 43b are secured by fastening elements 44 to a block 45 which in turn is secured by fastening elements 45 to the bar 3|. As is shown to good advantage in Fig. 7, the strip of material 43a is provided with a curved end portion 46 having an extension 46' projected therefrom, and the strip of material 43b includes a resilient finger 41 which extends into said curved end portion of said strip of material 43a, said finger being slightly curved at its end as indicated by the reference character 41'. The strip of material 43b is provided with an angularly projected portion 48, said projected portion 48 being adapted to engage a fixed abutment element 49, which is secured by fastening elements 49' to a portion of the structure of which the plate portions 32 form parts, so as to limit movement of the bar 3 I, during operation of the rolling machine.

The rolling machine illustrated in Figs. 1 to 12, inclusive, is adapted for use, particularly, in securing to end portions of cables, single strand elements, and other elongated bodies, end fittings which -ai'e adapted s t-or twat-101125 purposes: In Figs. 10;-11,'and12,iwhich illustrate theoperation-of the 'improved rolling machine, the work illustrated as beingiacted onebythe :Ir'olling machine comprises an: end-fitting 1B" which: includes an integral, =thin-walled=-sleevei C into -whichi is projected throughout substantially the entire length thereof an end portion of a cable-or other elongated element-D; ln the use of the: rolling machine A of the :present invention; attachment ofthe end fitting B to the elongated element D is accomplished by compressing --the wallet the sleeve into tight, gripping contact with the portion ofthe elongated elementlocated :within said sleeve, through rollingvpressureexerted i by the rollers of the machine against --said wall:v of said sleve ,9. .r..:'. i .l .1, In the use of --the-i mproved= rolling machine the handles 21" and of the niachi-ne-A are operated to bring the recessedportionsfl' and 8'. of the rollers 1 -and 8 to the. approximataposh tionsin which they-are-shown in Fig 110, or said rollers maybe adjusted to' such' positions by hand, and with the recessed: portionsof the rollers so positioned the work to be acted on by the machinemay be readily introducedinto place with respect to the movable work carriage of the machine. In introducing the work into place with respect to the work carriage the end fitting B is seated in the forward, tapered portion of the opening 40 formed through the socket element 39 (see Fig. 5) and the elongated element D is forced into position within the work-supporting member 43 where a portion of said elongated element is gripped between the free end portion of the resilient finger 4'! of said worksupporting member and a portion of the curved end portion46 thereof.

With the work thus securely supported by the movable Work carriage of the machine, the mova-ble work carriage is moved to the position in which it is shown in Fig. 11, and the handles of the machine areactuated to rotate the rollers 1 and 8 intermittently. -As the rollers I and 8 are rotated by actuation of the handles of the machine th'eywill engage the sleeve C of the work at the inner end thereof, as is shown in Fig. 11, and continuation of the intermittent rotation of the rollers will cause the wall of the sleeve to be compressed into tight gripping contact with the portion of the elongated element D which is disposed within said sleeve. Also,'as thewall of the sleeve C is being compressed on the end portion of theelong'ated element D by the rollers 1 and 8 of the machine, the work, and the entire movable work carriage by which the work is supported, will move to the left in Fig. 11, the bar 3| moving longitudinally of its supports provided by the posts 28 and the parts associated therewith. Thus, the work is securely supported by the work carriage throughout the entire rolling operation of the machine, and when the rolling operation has beencompleted the rollers may be rotated by hand to again bring the recessed portions of the rollers to the positions they occupy in Fig. 10, whereupon the work may be removed from the work carriage. In order to facilitate such rotation of the rollers I and 8 by hand the roller 8 is provided with a pair of outwardly extended pins 50 which provide finger grips.

In Fig. 4 are shown three different types of the socket members which are adapted for association with the member 3'! that is carried by the bar 3l 'of the work carriage of the rolling machine A, and when aparticular type of work is 7 to be acted on .by the rollingmachine the appropriate socketelementis:applied to'the member 3'1. The-'socket-element 39, that is shown in section in Fig.6 and which is illustrated at the top of Fig- 4, is used with an end fitting of the type illustratedby dotted lines in Fig. 5, the latter type of end'fitting abutting against the tapered wall of theopening 40 of the socket'element which is of reduced size and is located at the left-hand end of 1 the socket element 39, as illustrated in Fig; 5. ,The intermediate socket element 39a shown in'Figfil is employed with an end-fitting of the generaltype illustrated'by full lines in Fig; 5 but which is ,of a smaller size, while the lowermostysocket element 391) is employed with end fittings of the types illustrated by full lines and dotted lines in Fig. 9, an end fitting of the type shownv by full-lines in Fig. 9 abutting against thewall of the larger, outward tapered portion 390 of theopening through the socket element, while the type of end fitting shown by dottedlines in Fig. 9 abuts against the wall of the V inner and smaller. tapered portion 39d of the opening through said socket element 39b.

In Fig. 13 a rolling machine is illustrated which is provided .withrollers of a type different from that of the rollers shown in Figs. 10, 11, and 12. lhe rollers 5i, and Marc adapted for use in securing to a cable D, or other elongated element, abutment elements E at points intermediate the ends-thereof. .The particular type of abutment element E shown in Fig. 13 comprises a substantiallyspherical centerportion with integral sleeve portions extending outwardly from opposite sides of said spherical portion, and said; abutment member is slipped onto the cable from an end thereof. vThe rollers 5| and 52 are so shaped that portions of said rollers rotate in contact with the sleeve portions of i the abutment element E so as to compressthem into close, gripping contact with portions of the cable D When a cable D is to have an-abutment element E applied theretowith the aidof the rolling machine illustrated in Fig. 13,- the cable is gripped by the work-supporting structure 43, heretofore described herein,'and therefore the work is supported by'the movable work carriage of the machine for proper applicationof pressure by the rollers of the machine to the abutment element E.

'In Figs. 14 to 20, inclusive, a type of rolling machine is; illustrated which is provided with pressure rollers, that are, particularly adapted for continuous rotation during a rolling operation of the machine, although said pressure rollers may be operated intermittently if desired. The machine illustrated by Figs. 14 to 20, inclusive, comprises a, supporting frame having a pair of frame members 53' and 54 which support for rotation an uppershaft 55 and a lower shaft 55, said shafts having fixedly mounted thereon at their forward ends a pair of pressure rollers 51 and 58 which are provided with opposed recessedportions 51 and 58((Eig. 14). The means for subjecting the shafts 55 and 56 and the pressure rollers 51 and 58 to rotation comprises a hand crank 59 ,which is mounted, through the instrumentality of an overrunning clutch 59, on a shaft (ed that is supported by the frame members 53 andtt, there being a pinion 6| also mounted on said shaft 50 which meshes with a gear wheel 62.; The gear wheel 62 is mounted on a shaft 63 that is supported for rotation by the frame members 53and 54, and this shaft 63 hasfixedthereto a pinion 64 which meshes with a gear Wheel GE-thatis ,fixedly mounted on the 8 shaft 56', said gear wheelbeing arranged in mesh with asimilar gear' wheel 65' which is fixedly mounted on the shaft 55; It is obvious in view of the gearineiust described that rotation of the. hand crank 59 in the direction indicated by the arrow inFig. 16 will causethe pressure rollers 51 and 58 to rotateat the proper speed in the directions indicated by the arrows in Fig. 14.

Formed in the forwardface of the frame member 53 is a dove-tail groove 6e (Fig. 15) which extends horizontally, said groove having set therein a bar at of dove-tail cross-sectional shape which issupported by the' walls of the groove 56 for movement longitudinally of itsaxis. Secured to the forward face of the frame member 53 is a plate lit which is of the shape shown in Fig. 14, said plate being secured in place by suitable fastening clevices'fit so that it. covers a substantial portion-of the dove-tail groovefili. The plate 58 is provided with a slot 69 formed therein which is open at an end of the'plate (Fig. 14). Secured to the bar 61 at one end thereof is a cylindrical socket element l'li Whose axis is alined with the bite of the pressure rollers 5'3 and 58, said socket element having an opening ii formed longitudinally therethrough which is of tapered formation throughout a portion of its length, as indicated at i la, and which is stepped throughout the remainder of its length to provide opening portions of varying diameters, as indicated at lib. i he cylindrical socket element i9 is 58-. cured to the bar i 'i bya pair of fastening elements #2 which pass through openings in a narrow spacer l3 and are, screwed into screwthreaded openings formed in the socket element, said spacer being of such width that it will pass into the slot 69 of the plate E8. At the end of the bar 57 opposite to the end thereof at which the scclrzetelement it ,is' mounted thereon, awork supporting s nature it provided, said work supporting structure comprising epairoflelemerits Ma and 'l ih formed of strips of resilient material, which U-cured by fastening elements '55 to a black, lethat is secured by fasten- Y ing elements ll to the; bar 61 The resilient elements idle and l ibare shaped in side elevation as is shown in l8; that is to say, portions-of said elements extends outwardly from the block it are benttowardeach-other at their forwardxends, r r gripping portions l lo and 14d extending rearwardly from; said outer, bent portions; ih'e rearwardly extended gripping POE: tionl ld of the worlr supporting structure it is provided with upwardly bent abutment element l te whichserves to :limit inward'movement,

relative Ito the gripping portions Me and "hid, of work appliedv to said work-supporting structure.- I y In the use orftherolling machine illustrated in Figs 14 to usive, the rollerstl and 58 are adjusted to posiicn recessed portions 51 and 58 o f-said rollers so that the work to be acted on by the machine be applied to'the work carriage of the machine. The end fitting F ofthe work is t aintroduced into the tapered portion lie of th opening ll of the socket element iii in contact with the wall thereof, and a portionof the elongated element G- is forced be tween the grippiizie-portions 'Plc and ltd of the work-supporting structure i i, an end portion of the elongatedelementG being disposed-within the sleeve port-ion H of the end fitting F (see i -lg. 17) The bar til is then moved to the right to properly position the sleeve portion Hof theend fitting 1E with respectto-the rollers, and the crank arm is rotated to cause the pressure rollers to compress the wall of the sleeve portion of the end fitting into tight gripping contact with the portion of the elongated element G which is disposed within said sleeve portion. While the rolling operation is being performed the bar 61 moves with the work being acted on by the machine so as to properly support the work at all times during saidirollingioperation and ij'when the rolling operation has been completedthe rollers are brought to a position where recessed portions and 58 thereof will permit removal of the work from the work-supporting, carriage of. the machine. In this connection it is to be noted that a pivoted detent 18 (Fig. l6) is.,provided which is caused by a spring 19 .to engage the teeth of the gear wheel firto prevent reverse movement of the pressure rollers and thezgearing associated therewith. However, this detent has connectedthereto an actuating element 80 which may be drawn. outwardly to disengage the detent from the teethpfsaidgear wheel 62 if it is necessaryto reverse thedirection of rotation of the pressure rollers toproperly. position the recessed portions thereof. fofiapplication of the work I to, or removal of the work from, the work-supporting carriage of themachine.

Theopening ll of the cylindrical socket elementluisshaped as shown in lfis. 17 ,sothat it will. receive endflpprtionsotiittings of various sizesiandshapes. Also, an adapter 8l, may be associated with the socket element III, as is shown in Fig. 20, to provide for the reception of fittings of yet other types and sizes, said adapter being secured in place in association with the socket element 10 by a bolt 82.

We claim:

1. A pressure rolling machine comprising supporting frame means, a pair of pressure rollers supported for rotation by said frame means, means for subjecting said pressure rollers to rotary movement, and a carriiage for supporting work acted on by said pressure rollers, said carriage comprising an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced work-engaging means carried by said bar, said spaced work-engaging means including a socket, element disposed adjacent to one end of said bar and having an opening formed therein which receives an end portion of said work, and a work-holding member disposed adjacent to the opposite end of said bar which engages a portion of said work.

2. A pressure rolling machine comprising supporting frame means, a pair of pressure rollers supported for rotation by said frame means, means for subjecting said pressure rollers to rotary movement, and a carriage for supporting work acted on by said pressure rollers, said carriage comprising an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced work-engaging means carried by said bar, said spaced work-engaging means including a socket element disposed adjacent to one end of said bar and having an opening formed therein which receives an end portion of said work, and a work-holding member disposed adjacent to the opposite end of said bar, which engages a portion of said work by frictionally gripping said portion of said work.

3. A pressure roiling machine comprising supporting frame means, a pair of pressure rollers supported for rotation by said frame means,

means for subjecting Said pressure rollers to rotary movement-and a carriage for supporting work acted on by said pressure rollers, said carriage comprising an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced work-engaging means carried by said bar, said spaced Work-engaging means including a socket element disposed adjacentto one end of said bar and having aneopening formed therein which receives an end portion of said work, and awork-holding member disposed adjacent to the opposite end of said bar which engages a portion of said work, saidwork-holding member including resilient portions which frictionally grip said portion of said, work. 7

4: A pressure rolling machine comprising supportingframe means, a pair of pressure rollers supported for rotation ,by said frame means, means for subjectingsaid pressure rollers to rotary movement, and a .carria'ge for: supporting work acted on by said pressurerollers, said carriage comprising an elongatedbar supported by said frame me'ans for movement longitudinally of its. axis with respect .to said frame means, and spaced work-engaging means carried by saidbar, said spaced work V-engagine, mansihcluding a socket elementdisposed adjacent tofone end, of said bar'and having,,an,opening formed therein which receives aniend portion of said work, and a work-holdingmember,disposed adjacent to the opposite end; jofsaid. bar which. engages, a portion of said work, said opening of said'socketelement having portions shaped and proportioned to receive work end portions of different shapes and sizes.

5. A pressure rolling machine comprising supporting frame means, a pair of pressure rollers supported for rotation by said frame means, means for subjecting said pressure rollers to rotary movement, and a carriage for supporting work acted on by said pressure rollers, said carriage comprising an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced work-engaging means carried by said bar, said spaced work-engaging means including a socket element disposed adjacent to one end of said bar and having an opening formed therein which receives an end portion of said work, and a work-holding member disposed adjacent to the opposite end of said bar which engages a portion of said work, said opening of said socket element having portions shaped and proportioned to receive work end portions of different shapes and sizes, and an adapter arranged for association with said socket element and adapted to receive work end portions which because of their sizes or shapes are not receivable by said socket element.

6. A pressure rolling machine comprising supporting frame means, a pair of pressure rollers supported for rotation by said frame means, means for subjecting said pressure rollers to rotary movement, and a carriage for supporting work acted on by said pressure rollers, said carriage comprising an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced work-engaging means carried by said bar, said spaced work-engaging means including a socket element disposed adjacent to one end of said bar and having an opening formed therein which receives an end portion of said work, and a work-holding member disposed adjacent to the 11 opposite end of said bar which engages a portion of said Work, said opening of said socket element having portions shaped and proportioned to receive work end portions of different shapes and sizes, an adapter arranged for association with said socket element and adapted to receive work end portions which because of their sizes or shapes are not receivable by said socket element, and means for securing said adapter in place with respect to said socket element.

' 7, A pressure rolling machine comprising supporting frame means, a pair of pressure rollers supported for rotation by said frame means, means for subjecting said pressure rollers to rotary movement, and a carriage for supporting work acted on by said pressure rollers, said carriage comprisng an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced Work-engaging means carried by said bar, said spaced workengaging means including a socket element disposed adjacent to one end of said bar and having an opening formed therein which receives an end portion of said work, and a work-holding member disposed adjacent to the opposite end'of' said bar which engages a portion of said work, saidcarriage including means for removably supporting said socket element, and means for securing said socket element in position with respect to its supporting means.

8. A pressure rolling machine comprising supporting framemeans, a pair of pressure rollers means for subjecting said pressure rollers to rotary movement, and a carriage for supporting work acted on by said pressurerollers, said carriage comprising an elongated bar supported by said frame means for movement longitudinally of its axis with respect to said frame means, and spaced Work-engaging means-carried by said bar, said spaced work-engaging means including a socket element disposed adjacent to one end of said bar and having an opening formed therein which receives an end portion of said work, and a work-holding member disposed adjacent to the opposite end of said bar which engages a portion of said work, said carriage including means for removably supporting said socket element, and resiliently releasable means for securing. said socket element in position with respect to its supporting means.

' FRANK M. KRATOVILLE;

" FIRMIN M. CUNNINGHAM.

REFERENCES CITED O1son Oct. 15, 1935 Marsh Mar. 27,1945

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